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/* Parameters for Intel 960 running NINDY monitor, for GDB, the GNU debugger.
Copyright (C) 1990-1991 Free Software Foundation, Inc.
Contributed by Intel Corporation and Cygnus Support.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*****************************************************************************
* Definitions to target GDB to an i960 debugged over a serial line.
******************************************************************************/
#include "tm-i960.h"
/* Override the standard gdb prompt when compiled for this target. */
#define DEFAULT_PROMPT "(gdb960) "
/* Additional command line options accepted by nindy gdb's, for handling
the remote-nindy.c interface. These should really be target-specific
rather than architecture-specific. */
extern int nindy_old_protocol; /* nonzero if old NINDY serial protocol */
extern int nindy_initial_brk; /* Send a BREAK to reset board first */
extern char *nindy_ttyname; /* Name of serial port to talk to nindy */
#define ADDITIONAL_OPTIONS \
{"O", 0, &nindy_old_protocol, 1}, \
{"brk", 0, &nindy_initial_brk, 1}, \
{"r", 1, 0, 1004}, /* 1004 is magic cookie for ADDL_CASES */
#define ADDITIONAL_OPTION_CASES \
case 1004: /* -r option: remote nindy auto-start */ \
nindy_ttyname = optarg; \
break;
#define ADDITIONAL_OPTION_HELP \
"\
-O Use old protocol to talk to a Nindy target\n\
-brk Send a break to a Nindy target to reset it.\n\
-r SERIAL Open remote Nindy session to SERIAL port.\n\
"
/* If specified on the command line, open tty for talking to nindy,
and download the executable file if one was specified. */
#define ADDITIONAL_OPTION_HANDLER \
if (!setjmp (to_top_level) && nindy_ttyname) { \
nindy_open (nindy_ttyname, !batch); \
if ( !setjmp(to_top_level) && execarg ) { \
target_load (execarg, !batch); \
} \
}
/* If configured for i960 target, we take control before main loop
and demand that we configure for a nindy target. */
#define BEFORE_MAIN_LOOP_HOOK \
nindy_before_main_loop();
/* Address of end of stack space.
* This probably doesn't matter for nindy, because it's only used
* in manipulation of core files, which we don't support.
*/
#define STACK_END_ADDR (0xfe000000)
/* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
and has no caller. In that case, FRAME_CHAIN_COMBINE is not used.
On the i960, each various target system type defines FRAME_CHAIN_VALID,
since it differs between NINDY and VxWorks, the two currently supported
targets types. */
#define FRAME_CHAIN_VALID(chain, thisframe) \
nindy_frame_chain_valid (chain, thisframe)
extern int nindy_frame_chain_valid(); /* See nindy-tdep.c */
/* Sequence of bytes for breakpoint instruction */
#define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
/* Amount ip must be decremented by after a breakpoint.
* This is often the number of bytes in BREAKPOINT but not always.
*/
#define DECR_PC_AFTER_BREAK 0
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